K eckert lithographiho co



a., have invented rtain partm. f f

. 41139111, by binflelgfemlent Of, another@undJ interim .en ltromffthmmmf NNSYLY Below. tvhwt'inw 5131;@ @im reg another or .lower feed as giving motion to therod'sj" and g.

A near'theneedle'for practical purposes.

"means o fja thumb-screw passing "stood, however, that this connection doesfnot preventithe cylinder d from having its own.

; independent rotary motion.A The-cylin'der'e has each of its endsfcorrugated,as shown in Fig. 6. 't' is a screw passing through the tube a, andi', another screw, passing through the papj. (See Figs. 1 and 3.) v'.lhese screws'areso adjiistedas to enter the depressions in the corrugatedends of the inner cylinder e, and consequently as this cylinder revolves, the eleva- ,tion of the corrugations coming in contact with theendof the screws, the. cylinder is thrown froinsidete side and thus gives al lateral motion to V the:feed-'wheel and feed, from which necessarily result the stitches just described;

'.Tliefcapj, can besecur'ed in its place by means of t'liescrewj'f, Aand the screws t' and t" are, of

course', onlyto'fbe used'in the manner. stated when. the stitches .A above referred'to are to bel in'ad. 1- -Wlfen"these screws are withdrawn or taken' out, so as not to act upon the inner'cylin.

A der,'t he whole arrangement that we have been deseribiii g acts simply as an upper feed-wheel.l

` In the' further description' of niy improvementsyi tl will be seen that I have provided for apparatus, and, as the two act ih,.harinony with each other, I have @carrying the arm ZJ-heretofore' referred to -The 'needle may, and I think can, be niostv advantageously secured in its place by means A'of the-conical screw shown in Fig. 7, and in lvo bringithelower portioirof the needle, bar closel to the outer cylinder -or feed-wheel vd,the lower 'portion of thet'ube ctiscut out, as seen in Figs. 1 and 3. This,phowevcr, will 1 not be necessary when the tnbea, being'made of some thinsheet metal, closely embraces, throughout' ts whole length, the. needle-bar, for t then the. feed-wheel will he. lsu'ilzicientl y f Fig. 8 is 'an apparatus used insewing wheno, the stitchesare-tc' be shown only on one side j of the clcth. It isseen in'placeon the bedplate, at Figi 8', turned back and away from the needle.l When; in use-itis of course turned fbrwardas uearthe needle as inay be required.

l Its uses-willbcjhereaftcr described. Itisheld in the desired positionolilthef"bed-platcfby through the I lpropriete 'materiaLwhich-I call theseparatg in g plate, having an notch near onejendjfor the needle to play through, and anarlu'projectin'g'- from theA other end,which is' slotted. This scparating-platefcanalso 'be attaclned to the bedplate by'rneansfof Aathumb-sorew vpassin g through thisslotinto'the bedplate.' Fig.9'is a i shown in Figs. 1 and This linkI preferplan view of this separating-plate .detached from the bedtplate. The function of this plate is to separate the two folds or pieces of cloth, in rufllingor plaitin g, so as to allow the upper one to be moved by the upper and the lower one by the lower feed apparatus, thereby pro ducin g the effects ordifferen't modes of ruflling.

shown in 21, 22, 23, 24, and 25, on Sheet 2. It is passed in between the two folds or lpieces of clothuntil the edge within lthe notch' reaches as near as possible to .the needle,

without interfering with its free motion.

In the position transverseto the plane of motion ofthe fabric, and completely separating the upper from any interference with the action of theflower feed mparatiis, and vice versa,it is tirml y secured in place by itsthumbscrew..

letters to designate the variousparts. No. l'is a slotted block, cast upon or otherwise attached to; the lower -side of thebedfplate, to support the main shaft, which passes through it, and for other purposes. It is seenin place in Fig. 2, and in part in section in Fig. 10, whichiigure' is a vertical section ot' certain portions of the machine, to be. hereinafter described.

No. 2 is the main shaft, scarcely visible in Fig. 2, but a portion isseen in section in Fig. 1o. L

1, and has upon it, between these cheeks, the

-adiustingsleeve 4. 1

It thence passes through a cog-wheel, No.' 5, secured upon it, (seen in dotted lines in Fig. 11, and in section in Fig. 10,) and thence through a compound cam, 6 and 6. (Seen in place in Fig. '2, in section in Fig. 10, and end views in Figs. ll-and 12.) This compound camplays loosely upon the main shaft, and is moved, as will hereafter be seen, by a-systelu rof cog-gearing-.showu in Fig", 11.

-' 'The main shaft then passes andl is firmly attached to and-'terminates in 'another comf pound cani, 7. (Seeninplacein Fig. 2, in section in Fig. 10, and 'separately in Figs. 13, 14, and 15.)

-The driving-wheel 3 may be firmly attached` j to the main shaft 2, but I prefer having it loose, in which case alimi'tedextent of motion may be given it to the extent allowed by the pins 8-8, between which/the lkey 9, Fig. 16, in thel end of the. shaft, plays. p' v `The object of this play in .themain shaft will' be?eXplainedJwhen'describing.the doublehooked spread'enl, attached `to .the face of the'compound cam 7 on theouter or righthand face of the driving-wheehf- .As we look at the drawing, Fig. 2, there is attached one end of the -link 11, (see Figsl'l,

2, and/16,).which moves the needle-lever 12,

4Below the bed-plate are other and impor `tant portions of my invention, which I will proy ceed to describe,using numbers insteadof This main shaft extends from the driving# z wheel 3, through the two cheeks of the block locperhicvcr :16, :and adj n'sts its position,

@matting uncnythc nin, Otfritioll'roile1% i attached to thc under'suxjfacc of the .fecdog .--..1Z,11c,lbematelsf lifts; inwmlilets falliti@ .lc-tten incre than :t sixt'cen't an eighth, or a quarter ubut as'tlic main shaft does not pas's exactly t1 'ough its center, but Vnce-.ren one side than' mllixistment, givefthmqlred lellfgbhf-.- ,u .f v The next part that presents itseljooking ab'themahineiasshownfin' ,Fig-521cm@ fletb confonnde upon i the7 farms e172( 'attachicu1-i to, the,v fcedfdxog `17, for the purpose of giving a transvcrsc, r e- The screw l''l,

part `of the. @m1121745 getherwisenttached to the feedfdng,,isfintendedf,tohopercteupon .thee- Hiller orfpin, 2175,. soas to. incintev the trovar 1w:I

cipvocatiug, 'motion- Eto E ,theu fejeddog, and

ingthe parts as'therc repruesenwflffwm@ight View from Athe .fright in Fig, 15,; mit with and 'ity monton-Jess exact pci; hohccuggoyvitl Dclhansf more properly spakiugmf Tte objector. function of this division of Vthis compound @am is toactupcn the short;

needle. A

arm of the louper-lever 16, throwing they louper-needle forward to and beyond the ascending needle, and holding it there until the aculninated point otthe other division of this cam begins to act, and throw the looper needle back out of the way .of the descending The front face, looking'at Fig. 2 from the lel't, of thiseompound cam 7 is excavated, as

seen in section in Fig. 10. The excavation is made to receive the spherical .bobbin-'case' 18, as seen in Fig. 2, and in section in Fig. 10, or the'spool-case shown inr section in Figs. 17 and 1S, and in place at 19, Fig. 1.

Above and extending yabout hall" around this excavation, attached to the face of thecompouud cam 7, there isA a-projection, 10, which Il call a double-hooked spreader. (Seen in front view in Fig. 1, -in side view in Fig.

- 2, in section inFig. 10, and partially in Figs.

loop, and 'thus secures it, and then continuing its revolution it 'brings this loop over the p sloping back ot' the spreader, and carries it thus under and around the spherical bobbin, ,or spool-case, when itis thrown ofi, to-be taken up. l

`Projecting frein the lower edge iot' this spreader is a lip, 20, extending beyond the vertical axis of tlfe spherical bobbin-case or` spool-case, asseen in front view, Fig. 1; side view, Fig. 2; and` in section, Fig. 10. A slot iscut in this lip, at' or near its `junction with the spreader, to allow the needle to descend through it. i

The object of the'lip 2.0, itself, 'is to throw the thread from'thc' bobbin in the l spherical case, or the spool in tho-spoollcase away from f andso as not to come in contact with the hooks ofthe spreader, asseen in Figs. 2 and 10, and also to secure more e'ectually the throwing of the loop' from the needle around these cases, and thus preventing it from' again coming-'in contact with the hooks ot` the 'spreader'ld A The looper-lever 16 is a curved lever,-work ing on the neclrof thescrew 15 as ,fulcrnim T (See Figs. 1 and 2..)

This screw is attached to the lower end of the cheek of block 1, as shown in Fig..1,.and not only serves as a fulcrum,butalso as a means of throwing the looper'needle in or out otaction, and` adjusting itfor use.

The short arml of thi'sleveris operate-d by supported by a 'bowed spring,

that division ofthe -cam 7 which I have dc- 'scribed as having alperiphery formed by tw arcs ofcirclcs of different radii.

- The long arm of the lever 16, curving up around the compound cam 7, has its extremity Adivided into two branches; one ot' which extends over toward and-is acted upon by the acuininated point of the ovoiddivision of cam 7, and the other branch serves ,t0 carry the louper-needle.

This lever is ,seen very distinctlyvas '16 iu Fig.'1, and 16' vbeing the short'arm, 16 the division ot' the long arm, operated upon by .the acuminated points of cam 7, and-16 the division carrying the loopcr-ueedlc.

The spherical 'hobhin-case, and spool-case.,

as shown in position iis-Figs. 1 and 2, (18 and 19,) are held there by the Iclamp 2l, but not pressedupon' by it so closely as to prevent the thread of the loop from passing easily'betwccn it and them.l

'lhe forni and nrrarwement of' thel clam i 2l 'may be seeuin the aboveFigs. 1 and 2. It is held, it will be seen, to -the lower face of the bed-plate A by a thumlrscrcw, 22, by which it may be lirmly fixed .in its proper position.

The spherical bobbin-casc hollow, and divided'lnto two'heinispheres, united by a male and female screw, along a' horizontal or equatorial line, as seen at 18 in l'sim2.

In Fig. 10 there is shown a vertical section at 18, through the Sphere, displaying the screws and t'lle-bobbin/23 in place.

-To held the bobbin in its' proper place, a

notch is made on each side of the lip of the lower hemisphere, so that when the upper hemisphere is screwed down it holds the points -7 ofthe bobbin therein, but not so tightlyas to interfere with its rotating freely on -these points. v

rEhe thread from the bobbin passes under a -tension-sprin g, 24, and thence out through an critico in the upper part ofthe sphere, between the looping spreader v10 and the lip 20,- and thence under the latter, so as tobe thrown to'- a distance sutlicient from the hools ofthe spreader to prevent it from coming in contact therewith. v 4 5,

Figs. 17 and 18 are vertical sections ot' the spool-holder, seen in position at 19, Fig. 2.

These vsections show two modes o t' applying 'tensionto the thread,lns it passes from the spool. v

In Fig.18 the thread passes under the spool, and up through the center thereof', by the side .of or through the pole upon which the spool,

turns. l

A tension plate or disk, acting upon the thread, is, seen in the bottom otf'tltis section,

nich is regulated iu its pressure by a scre\ v-.

Fig. 17 Shows ano'tl'lerfomn of'applying tension, which-,I prefer. f In this arrangement the thread'piassesii'roni the lspool under A4a', curved spring, 25, secured-'at one'end, and'lucarly opf-propo "maf mili ` face @fille compound cam 7. Having., igh'a'xL,

-one or both of the others.. -v

laws, will he communicated through the cam 7 to the 'spreader and its hook,l retarding the a pproaeh of the hook tothe needle long enough to allow the latter to'form a loop ot". a proper size to be caught upon the hook.

When all the parts of my machine are prop erly constructed, and due attention given to keeping as well as Aputting; them4 intrue adjustment, the occurrence of the irregularity of fits action, for which this provision 1s made, is

not likely to ,take' place, even when thel main s haftvis permanently attached to. the.d riviugwheel. `Asit may, however, under some circumstances,"IA have deemed it necessary to .devise a planof meeting and providing for it.

Iwillalso avail myself of this occasion to explain more fully than has heretofore been done,A

the function ofthe sleeve 4 and its set-screw.

My-'maehine is .eapable'ofmaking a vstitch with one, two, or 'three threads, 'thes'c'being severally theneedle-thread, the looper-thread, and thespherical--orspooLcase thread'.

'In all these stitchesthe needle-thread is nec,4

ess'aril y invol vcd, the combinations being with When this' combinationis between 'the needle-thrcad and the. eyed vlouper-thread, making what is commonlycalled the! double- .loopstiteli,the splierieaLor bobbin case thread v isaiot involved, and consequently it will their be necessary to havcthe machine so adjusted' thatthe double-hooked spreader 101 shall' be in such a4 position that'it cannot catch the loop form'edby the needle-thread, 'as it would do, its revolutions being continual, if it oecurpied the .position -it mustdofwheu the spherilutions cannot-catch the loop formed by the needle. lfhis is accomplished by giving theI 4main shaft apiay iipon 'andi'n" the direction. o t its axialtmo'vement, the fslireader' and cam 7can be moved at"wiil,=vw ith'the'maiu shaft towhich .they are attached, aslwiine said, so furto the right, lookingat the'maehiue represented in Fig. 2, that--the hooks oi' the spreader will -nolongerbefuearfenough to catch-into the ioopfot tlurneedie, until they shaliha've passed heyom11it..r f i Bu t tl.|is `axial motion 'of' jthc main shai't musft notbe entirely free-that is, it must be controllable; oth rwisc the sprezule'r-hook might varyfits position fromlig'ht eauses,and thusiiterlre with thel certainty oi' the operation ot' the machine, in limiting.;` its several kinds of` stitches.. It is mainly to prevent Athis"4 that l use thesieeve l'L and its set-screw.

'lhis screw tits looseLvupou the sha't't, and

" closely, but not tightly, between the cheeksof lelock 1,'and-the thumb-screw is used te fix it *with which it then revolves.

when lin action.

'through the arm `"and fixed to the arm ='eoaao t.

tightly, when necessary, lupon the main sha'i't,

. When it is desirable to remove the spreaderl hook out of the way ofthe needle-loop, 'td

prevent its interference` with the stitch to be. formed, either by the" thread ot' themeedle alone or hy the combination ol' the .threadsv of the'needle and looper, it is only necessar\;-

to loosen the thumb-screw ot' the sleeve 4 f'roniv its gripe upontheshatt, push the latter, carry.-

'ing withit, of course, the cam-7 and spreader to the right the required distance, and again i cla'mp the sleeve to the main shaft by means ot' the thumbserew. This movement 'can be bestmader by pressure upon Athe exa\': t'ted face of th'e cam 7.-

Another very important iunctiou whieh'thi's sleeve 4 and set-screw 'performs is in thc adjustment ot' .the face of the spreaderand-the hooks to the needle. By thisr adjustment fthe hooks may be brought'so nicely up tothe needle that the slightest development ot its loop will enable the hook to enterj and se' cureit.' i Un the extreme 'rlg'htot' Fig. 2 is shown my improx'ed apparatus for transferring the threadfrom thc spool to the bohbiri. This apparatus is attachcd'to theunder side of .the .bed-plate A byl a screw, 32', upouwliich it turns,gaijnl4 by which it is fixed -in position lhe lapparatus itself eonsistsoi aframe,

mf-with two-descending arms, 33 and 2&3, a

large tlat driving-wheel, 3i, attaehedby an" open movable collar to the frame, a snu'tllerv vertical wheel, attached toaspiudle passing 323/', and driven -by friction upon the outer edge'of' the face ot' the larger wh'ee'l.- v: f. v I The spindle ou which this'slnaller' wheel is fastened projects through. the arm3.'5 ,far enoughto receive and hohl a.y spool, 35,-which-' revolves loosely npon'it.

Thronglr the other arm', 33', another spindle passesyranging-iu aline with that through f", and-tixed -ii-riplaee lby a scrw,36.*ff The Ainterval 'between the two spindles admits the bobbin 23,-J1`ig.'f;l0,aiid 'is-incid in placeby'tho adjustmenb'of the spindle. in 33h-.1" '.Onithe'umier side' el the v I z'ijger \'yheel,'.31i-' a hole iu itsfreeeud, and o n the'ofi'rter sideza'nd upper end ot' the arm 33 '..tl |erc :trmmrangml a tension-screw and s'prin'g,. 8. il j'' j The thread from the'bobbinj passes under the tension-spring, which is' adjustable lto the ref quired tension-diyits screw;v thence to and through the opening iu the coliarof the wheel thence on the b ebbim A I. havedescribed lzhe'pin for' holding the spool as a continuation of the spindle for holding'one end of the hobbin, bui` instead oithat this piu may be independent et the spindle, A

I mhepbjepe bobbinin,fuespnericaleasejls,wf 'A be ,used fordri'v reguleteth bobbiefseeam bobbu` or v 'S1100 e pli by adjusting the mengt :wheel e4 QQ, the outenafac bow-@without we ,se

oi'elll'ettentiom: ill distributmhei emi fort-hfupefthe the threadisv 'diteeted byV orally, if not always, lorie in by? the' 'needle propel? aothew byx the )loopen v orJlooperln'eedle-,iandHthe---otlrep ist furnished which but mie thpendathat of the needle-fis used'; f second, the double-:loop stitch, Diagram.

2,11; 'which the peedle-tbrendfandthe iooper: thread :are eonfxbilnefi thi pd, the shuttle-stitch, D ia gmail 3,- in' iwhohfithe eedlethnead end the ings 0f U16 @roeien-threads. l uopdinaxyewing, andtheofthe YIlm-iis: conditiorfthe .fee-doeg adire when e-proper apenturehasbeehthe assistaueeflt the "xsiepar'etin,Qn-plete,AFig,` 9, it 1will make. yme.varieties of fumes," by casio gf thefnpperjfeedltof mpye, .-in fouio f thjemfgtsterl thantlneloweg 1f-nd founvareties-of plaits by 1 eensingi thehm'ery feed-'wmovefeseeemm the upper, ,The tlvevarietieslofkrnles :we :elso exbibited f on5heetf2 :byfDiegrams 2l, 22, 23,. .24',andl25if "0.; :Irv tw rif w fun". wfxp, "r f. "In--thepreoedi gportion of this epe 'leetion the fmode. ofoperation of.` the @j -upper ced axp peintes was so fully explained that; not `deemed necessary tozrefen-further toilit l 1w ill, therefore, proceed to explain thefopelmton of maisifflfligielv "vanietie of@ stitches. iivedirvo mene cop- I pose.

*well as vibrate, and :the screwl or screwsV in arms 1f1 "arje screwed in,nnti1they will be| acted upon; by the earn 6'-, andso adjusted as,

'to give such length of vibration horizontally to the feed-dog 17 as may be desired to give the required width to the stitch.

i It mustv be recollected that eithervthe'npper; 1. or lower feeding devices can be dispensed with livhenfdesirable, leavinghe feed toA be carried jonbyohe remaining in action. Y, v

When thelower :feed is not wanted to perf l. torin 1ts function alsafeed apparatus, the screw" y1 7, which is operated nponby t e ange 6,

'and' the'screwjor 'screws on thel arm' .17.",are wlthdrawnlto the proper distance l to prevent their being. acted upon, and' theni the, feeddogA .17,wtl1.all itsattachmentsmanand is lobe a pushed toward the drivingfwhe'el, until discn` gaged from the kcorn pound cm 6', in ,which position lt-willreinain entirelyfqniescentLl 1n making the stitches represented on Sheet 2, from Diagram 11 to 20, inclus ive, in which theyshow themselves onlyy on one side ofthe cloth, the'roller, Fig. 8, is u'sedf v Inl these, the action of the two feeds ie I, in

oppositionto4 cach other-that, is, while the lower feed acts in its usual direction, drawing` thecloth' forward to be sei-ved, the upper feefady acts in an opposite direction to drawjtaway afterit ha'sbeen sewed. 1` A This is accomplished by.v taltlingloff clutches f and g, and their appendages,rand` "reversing them. This gives theupper feed 'l direction-opposite that of the lower, the roller,-A r f Fig. 8, being at the time'between the two, the cloth passing up over the -roller, and back under thel upper-feed. y

` lt is not absolutely necessarya roller should be used in this case.

lwith a round edge will 'answer the same pur- -In making the ruiles represented o nSheet 2, Diagrams 21, 22, 23, 24, and 25, both' feeds "are used.

The separating-plate, Fig. 9,' secured, as be.

I 'fore described, to the bed-plate A, Fi gs. 1 and, 2, being placed,"` between the two membranes' Ao'r fabrics to be yoperated upon, is pushed close up between the Atwo feed'appara-tus, so that the feed and needle will have to playin the long notch on its edge.

' In Diagram 21 both feeds act inadrect line.

In 22 the upper feed acts in a zigzag, while thelow'eracts'direct.v

'In Diagram 23 both feedshave a slight zig' zag elie'ct in opposite directions. In 24vthe lower is zigzag or vibratory,the upper feed lirecaand in 25' both'are zigzag or vibrator .-In Diagrams21, 22, 24, and 25 the upper clothl is fed faster than the lower. This is ae.

complished' by bringing the screw-tappets on f, Fig-.1, nearer together, so that`the lengthof'the throw ofthe upper feedat each stitchl ,Twill be increased, and this-difference may be further increased by lessening the throws of the lower feed. n.

A stationary dat: bar` Yfeegiao zigzag direction,- Vtheffeed. apparatus, on both sides .have the same. throw, but v ibrated in alternate ,opposite directions; but infDiagram 25\.the upp'er feed is'. again fasterthan-thc llower, and both vibrate, but .ini-'alternate opposite directions.

InAIV Figs. 19, 20, and A operation and severalpositionsof: the looperneedle in makingthedoublefloop stitch'. I do this` because my arrangement is differentv-froni any other with which Iam acquainted.'

and forked .with unequal brauch es at the other.

' In making the doublelooped stitch, whether `'alone or iii combination ywith the lock or shuttlc stitch, the 'eye-pain tf is' 'in advance' and ,carvriesathread. `f f `[In Figa/ 1i the needle is shown as having descended vtoitsntruest. extent, .while the looper' .is tlirolwnback. bythe action of the'acuminated pointof the voidcam Z upon the armv 16"( .of the bentlevei".16g-1..'

cendedl nearly.to the llower' side of the bodpla'te' 'andv th'ea-rni-1dfbcing relieved by the revolution iofgthe cmu-fi, the looper has come 'just behind'the ascending eye of' r the needle,

lthereon until theneedle again descends, when itpasse's behindthe looper, as shown in Fig;

the -eyeof the looper.

' -When the parts have got to tion, theflooper, beginning again to bc'w'thoff-'the 'needleloop which is Caught noname 100ner-thren l l I have ydescribed the compound cam i6 6 as 'beingmade of two parts,"6 and 6', but united together, and thusy forming in 'fact only one cam.l It is not necessary,"however, that this union l should be made. Itis only necessary that therelative revolutions of 4the two parts,

only-revol've l once in y'making two stitches, Ami' thefsaine `ob s'eri-'ation may bemade l-in relation tothe compoimd'cain 7 and the 'dou ble-hookedspreaderlih The-'two parts' ot' this lcam 7 vmay lie' made separate, andthus produce the same effect as that described,provided they are arranged in relation ings. .Y r Nor-'is spreader 10 should be attached to the face of cam'. 7 Byattaching itdirectly tojthe end o1.' ,the shaft, ,or around airenlargementof the end v21 I have shown My loop'er-ncedle "3L is pointed 'at one end, l with an eye forcarrying the thread in thatend,

forward/,iwan oblique direction, owing to the position itoccupies i n its; fastcnings in arm 1 6" where f' it enters. and engages the loop of the -f needle; Vf"t he' needlecontinuing -to ascendr andthe looper 'to advance, the needle-loop isheld 20.,betweenV its former loop and thejthrcad in about this'posif .l

drawn by the ovoid cam 6,'as seen in 1i`ig. 2l,.l

'is sligbtlysprung back byA coming,r in con tact with the needle, but 4finally escapes and throwsv `as described, should be maintained, sov that this componliilgcam, unite'd'or dividedeshould.

to each other as shown in the draw-1 itf'absolntely necessary' that the.

as that set forthin the vdescription i o f the ar rangement as ignrcd. Other plans might be adopted ,but l'propose the one first described.v I wisli`it`l1o be particularly observed that the cloth 'or l'eed in my machine moves along` portant feature in my machine, which, it' not new, is certainly not found in others now in most oennnon use by the publie. What I re fer to is, that while the cloth or feed continues to more nlwaysin the above direction, the driving-wheel and main shaft that operate the inachinery for producingl thcstitchingmay move or revolveV in either direction, and hence the operator ncedfhave no apprehension of giving* awrong,Y direction to the il y or driving wheel :at any time, as it produces precisely the saine stitch whatevcr may be the direction of its "reyolntion or the nature oi' the stitch to be produced.

4 The clutches` ol' the feed-wheels may 'be made to operate in ratehets npon the wheels or cylinder d and e, Fig,` 3.

having thus fully ments .I have made in sewing-inachines, what I claim therein as new, and desire to secure 1.41hc elliptical cam 6 and its tflange 6, in combination with the niain shaft i5 and intermediate. gearing, alhconstructed and operating substantially as herein described. A 2. The compound cani 7, combined with the loopingarm 1 6, and constructed to operate ,substantially as and for the purpose herein set il'ortln 3. The `double-hooked spreader l0, con structcd and operating substantially as described.

4. rlhe slotted lip 20, attached to front face of .the double-hooked spreader 10, constructed, A arranged, and operating substantially as and for the purpose set forth.

5. The combination,as herein described, oi' the feed-dog; 17, `(friction-wheel17, and adjusting-screw 17 with the cam G 6,`or' impart- "ing vertical. and longitudinal:motion to the feed-dog 17.

6..'lhecomh1nation, with the above, ofthe arms 17 and their adjusting screw orscrews,

and the cam 6', for giving lateral, vertical, and

forward motion to the cloth. orl feed-substan- ,tially as herein set forth.-

7. The curved letter l, having'its long arm forked .or divided, and supported on and made adjustable by the. fnlcruin-screw l5, substantially as herein described.

'-8. The needle-bar G,- w hen'jprovided wi th arm b for carrying the rods f and y', andwork` ing in the'tube a, attached to the-front face of" thereof, the saine function would be performed described the improve- 10..,.The outer cylindcr'd ol.' the feed-wheel, y

with its spring lf, ,clutch f, rod j", and .clainp f", when combined, constructed, and operatin substantially as set forth. A'

11;' lhc inner cylinder c oi' the upper justing-'scrcws it', and clutch g, rods g', clamp y, andspring h', combined, Vconstrncted, and

to the feed-wheel. i

2. The combination 0i' the cuter feeding;A cylinder d and its appendages with thc in'ncr cylinder c and its appi-nidages, l'or giving: laieral andi'orward orretrograde motion to the cloth, as described.

13. The roller, Fig. nation with the upperi'ecdapparatus, in tho manner and for the purpose set forth.

14. rlhe adjustable plate, lli ii, constructed as described and i'or the purpose set forth, in combination with the upper and lower i'cedini; apparatus," operating as land for the purpose herein set for-th. A

v15, The loopcr-nccdlc 3l., eyed and pointed at one end, and forked at the other, substantinll y as described.

416. The combination, with the loopcrnccdlc 31, ofthe notched. plate 27, spring,- 28, pin im,

louper-needle, in theniauncr and for the purpose set'lortln 17. 'lhecombination of the l'rame It and its arms 2&3 and 33", with the'l'argc wheel 2H, and small wheel 35, for winding the thread on thebobbin 2li automatically, substantially :is described'. v

'18. 'lhc tensionspring 38, in combination with the Vdescribed winding apparatus for regulatingI the tension of the thread in its passage from the spool to thcbobbin, as described. 19. .ln sewing-lnachines,where rotary hooks or spreaders are used to carry a loop around a spool or bobbin, or the spoel or bobbin case.,- thc combination ci' `the rotary spi .:i.din;-hook 10 with a feeding mechanism, feeding thc cloth or fabric `toward the t'rceiace of the hoot: or

. the other..

2l. Thecombinatiomwitha scwingunachiins,

two feeding devices", 'constructed sulnitreza-aW rally as herein described, either one oi' witter;

firidf. whcehwith its corrugated ends, hie. (5, :ni-

operating .as set forth, .to give lateral motion and screw 30, i'or fastening and operating;r thc l may be made to perform aloneall the requirements of afeed apparatus, both for zigzag and direct stitches.

22. The combination, with a sewing-nmchine, of two feeding devices, either ot' which may be made to perform, suhstantiallyas herein described, all the requirements of a feed appa- -o1" a cylindrical or spheroidal bobbn, a turning or revolving;` looper-hook, and a forked or barbed looper vibrating below the bedpfa'tc, when constructed substantially as herein described, so that it will be unnecessary to rcmove either of these elements or devices therefrom to render the machine capable ot'. mat' int;` either a singleloop or a back stitch.

25'; 'lhc combination, in a sewing-nuwhine,

of mechanical devices, constructed and arranged substantially a s herein described, so

as to operate eiciently in4 making not only a stitch or stitches with three threads, but also in makinga stitch or stitches with either one' or two threads at option, without the removal therefrom or the addition thereto ot' any mechanical device orpart of the machine used in making a stitchwith three threads.

S. l. SLlCllY.

Witnesses: t

J Mms Joms'ron, N. l). S'rimcs. 

